Hello Michael, As Roland pointed out, it also seem to me to be a matter of signal integrity at high freq. From your video I counted 6 USB interfaces between your PC to your camera (1st hub input

Thanks for the replies Roland, Ray and Steve. I am using TSX. Camera is a FLI Proline 16803 and guider is currently an ASI290. I started using that to replace an SBIG Sti guider which I have used

I use an Atolla 7port USB3.0 powered hub in my observatory, temp now is about 20deg F, no problems. It's cheap, about $25 on Amazon or Ebay. My ASI 1600mm camera has an internal hub adding the

I've never used them on USB connections previously but if there is a way to protect the connections and make sure they don't get moisture or start corroding I am going to do that. This will be in an

Not going to take the mount apart for sure. Thanks for the info about the reflections. Way over my head for sure. Be interesting though to see if my experiment next week shows the same issue

Hi Greg, Which version of the ASCOM driver are you using? Since you are using a GTOCP3 you might want to stick with one of the older ASCOM drivers like 5.21.01. New rate commands were added in the

At the frequencies used in USB3, they begin to act more like light going thru various surfaces. At each connection there is a reflection of the signal just like the air-glass surfaces of a lens. So 2

Hi Roland. I just did a ton of experimenting. Xentex was right. If I simply plug into a usb 2 port the problems go away. Also if I bypass the mount entirely even with a 6 foot long cable, the

A silicone grease can be useful to prevent corrosion of contacts, and if you're plugging and unplugging them a lot or they get jiggled in their sockets it will help reduce wear. I use it all over

I saw a problem like this 2 days ago in 28 ° F. My installation is complex with the Pegasus powerbox V2 installed in front of the plate, 1 USB3 Hub at the output of the mount wiring, 1 active 5m

I would also look for loose equipment, snagged cables, and software settings. It sounds like you image using TSX software so maybe try a simple stand alone program and see what happens without TSX.

P.S. unplugging the keypad won't do a thing one way or other. The keypad does not communicate with the mount unless you push one of the buttons. It is totally silent at all times and does not

Guide at 1x. Going slower will not help. Make sure you have a good calibration run. Remove all backlash compensation, both in the keypad and in the guide software. If using PHD2, you should first use

I have a usually reliable AP1600 mount. It is slewing fine but autoguiding suddenly went wild a little while ago. So normally I get very small guide errors .2 to .6 arc sec guide errors. They suddenly

I do not use video for sure. Not with this camera. 3 seconds on USB2? Interestingly I have an Icron Ranger 2304 which is a USB 2.0 over Cat5e which was allowing me to run long ethernet cable out

I think you only need the Pegasus powered hub on the scope. Roland

You may not love this solution, but if you downgrade the USB cable from the PC to the mount from a USB3 to a USB2 cable then it will likely solve your problem. Or the cable from the mount to the hub.

Do you have any suggestions? I was considering the idea of a powered hub with a short cable plugged into the mount bottom and then another hub at the top but I believe there is a limit imposed by

The mount adds 18 inches of cable plus two connectors, which may be a problem for your camera. The USB3 signal from your camera is probably too weak to pass thru the extra length and connections. It

My camera unfortunately doesn't have a built in usb hub so I can't go from camera to hub. I am going to further experiment with this later today but at this point the only solution seems to be to not